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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-50630] ProgramOutputMultiplexer&apos;s log buffer grows without bound</title>
                <link>https://jira.mongodb.org/browse/SERVER-50630</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://github.com/mongodb/mongo/blob/010a7d9da97a9681dd4c6972e0524b29131357fe/src/mongo/shell/shell_utils_launcher.h#L66-L74&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ProgramOutputMultiplexer&lt;/a&gt;&#160;includes a buffer which stores all of the logs from all of the mongo shell&apos;s child processes. The buffer is not cleared until the mongo shell exits.&lt;/p&gt;

&lt;p&gt;In tests which produce large amounts of log output (for example, tests which run with a higher log verbosity) this can cause the shell to crash while attempting to grow the buffer to an unreasonable size.&lt;/p&gt;

&lt;p&gt;We should consider changing the ProgramOutputMultiplexer to only store the output from the child processes in an &quot;opt-in&quot; fashion, rather than by default. As far as I know, the number of tests which rely on re-reading log output is relatively small.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1456247">SERVER-50630</key>
            <summary>ProgramOutputMultiplexer&apos;s log buffer grows without bound</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-devplatform">[DO NOT ASSIGN] Backlog - Server Development Platform Team (SDP)</assignee>
                                    <reporter username="ian.boros@mongodb.com">Ian Boros</reporter>
                        <labels>
                            <label>sdp-backlog-purge</label>
                    </labels>
                <created>Fri, 28 Aug 2020 21:30:01 +0000</created>
                <updated>Mon, 19 Jun 2023 18:35:05 +0000</updated>
                            <resolved>Mon, 19 Jun 2023 18:35:05 +0000</resolved>
                                    <version>4.5.1</version>
                                                    <component>Shell</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5509953" author="JIRAUSER1268551" created="Mon, 19 Jun 2023 18:35:05 +0000"  >&lt;p&gt;This has been identified as work that the SDP team won&apos;t do in the near term. Please reopen with a comment if you feel this work should be reprioritized and explain why.&lt;/p&gt;</comment>
                            <comment id="4540010" author="steven.vannelli" created="Tue, 10 May 2022 21:33:56 +0000"  >&lt;p&gt;Moving this ticket to the Backlog and removing the &quot;Backlog&quot; fixVersion as per our latest policy for using fixVersions. &lt;/p&gt;</comment>
                            <comment id="3385357" author="brooke.miller" created="Thu, 10 Sep 2020 14:58:23 +0000"  >&lt;p&gt;In triaging, we discussed that upon this change, we need to send an email to server engineers letting them know that they need to explicitly opt-in so that they don&apos;t experience issues. Also, we should audit the existing 100+ tests that check log output, so we will need to modify them.&lt;/p&gt;</comment>
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